Support zstd compression codec for open-telemetry/opentelemetry-java

[patrick-me]

Hi there!

Could you please, support zstd codec for the exporter or all of them.
ZSTD codec is much faster and more efficient than gzip, sure you know.

Btw, zstd is already supported by Collector

I'm looking forward to hearing from you
Thanks in advance

[jack-berg]

Do you have any thoughts on how this would be delivered, given that there isn't any native support in java?

There's a popular library called zstd-jni, but it looks like it packages up a architecture-dependent native library and has artifacts that are quite big, each on the order of 400kb. The main jar comprising all architectures is ~5.7mb.

Maybe we could provide an SPI to allow for bringing your own codec, and publish artifacts with some popular implementations. This would essentially allow users to opt-in to the big additional dependency.

Thoughts @jkwatson?

[jkwatson]

"bring your own codec" seems fine, but maybe that's just "bring your own exporter and configure it however you like".

[jack-berg]

open-telemetry/opentelemetry-java-contrib#1108 adds publishes a new artifact from contrib which adds support for zstd. Please take a look. Planning on closing this issue after #6103 is merged since we don't plan on adding support for other algorithms in this repo.

[patrick-me]

Thank you very much, Jack 🙏

[jack-berg]

Closing now that open-telemetry/opentelemetry-java-contrib#1108 is merged.